EP1233374A3 - Apparatus and method for extracting objects based on feature matching between segmented regions in images - Google Patents

Apparatus and method for extracting objects based on feature matching between segmented regions in images Download PDF

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Publication number
EP1233374A3
EP1233374A3 EP02250315A EP02250315A EP1233374A3 EP 1233374 A3 EP1233374 A3 EP 1233374A3 EP 02250315 A EP02250315 A EP 02250315A EP 02250315 A EP02250315 A EP 02250315A EP 1233374 A3 EP1233374 A3 EP 1233374A3
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EP
European Patent Office
Prior art keywords
image
extraction target
matching
target image
segmented regions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP02250315A
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German (de)
French (fr)
Other versions
EP1233374B1 (en
EP1233374A2 (en
Inventor
Du-sik 135-1401 Hwanggol Maeul Jugong Apt. Park
Chang-yeong 502-1305 Jinsan Maeul Samsung Kim
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Publication date
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Publication of EP1233374A2 publication Critical patent/EP1233374A2/en
Publication of EP1233374A3 publication Critical patent/EP1233374A3/en
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Publication of EP1233374B1 publication Critical patent/EP1233374B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/11—Region-based segmentation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/255—Detecting or recognising potential candidate objects based on visual cues, e.g. shapes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
    • G06V10/457—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components by analysing connectivity, e.g. edge linking, connected component analysis or slices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/56—Extraction of image or video features relating to colour
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
    • G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
    • G06V10/751—Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching
    • G06V10/7515—Shifting the patterns to accommodate for positional errors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
    • G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
    • G06V10/758—Involving statistics of pixels or of feature values, e.g. histogram matching
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
    • G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
    • G06V10/759—Region-based matching

Abstract

An apparatus and method for extracting object based on feature matching between segmented regions in images are provided. The apparatus includes an image input unit (110) for receiving a query image including an object and an object extraction target image from which the object included in the query image is to be extracted; an object position determination unit (120) for determining a position of the object in the object extraction target image using pixel based color feature matching; an image segmentation unit (130) for segmenting each of the query image and the object extraction target image into a plurality of regions using image features including color or texture; and an object region determination unit (140) for performing matching between the segmented regions in the query image and the segmented regions in the determined position of the object in the object extraction target image using color or texture features and determining a final object region using similarity in spatial adjacency between matching regions obtained as a result of the matching. Accordingly, an image region of a particular object can be automatically extracted from an object extraction target image. Therefore, the apparatus can be applied to video editors, video authoring tool, object based video encoder, interactive video authoring tool, and the like.
EP02250315A 2001-01-20 2002-01-17 Apparatus and method for extracting objects based on feature matching between segmented regions in images Expired - Lifetime EP1233374B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR2001003422 2001-01-20
KR20010003422 2001-01-20
KR2001068383 2001-11-03
KR10-2001-0068383A KR100450793B1 (en) 2001-01-20 2001-11-03 Apparatus for object extraction based on the feature matching of region in the segmented images and method therefor

Publications (3)

Publication Number Publication Date
EP1233374A2 EP1233374A2 (en) 2002-08-21
EP1233374A3 true EP1233374A3 (en) 2003-09-17
EP1233374B1 EP1233374B1 (en) 2010-03-10

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EP02250315A Expired - Lifetime EP1233374B1 (en) 2001-01-20 2002-01-17 Apparatus and method for extracting objects based on feature matching between segmented regions in images

Country Status (6)

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US (1) US6990233B2 (en)
EP (1) EP1233374B1 (en)
JP (1) JP3740065B2 (en)
KR (1) KR100450793B1 (en)
CN (1) CN1223969C (en)
DE (1) DE60235591D1 (en)

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